/* 基础重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 全局样式 */
    body {
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        color: #ffffff;
        padding: 20px;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Inter', sans-serif;
        margin-bottom: 20px;
        color: #ffffff;
    }

    h2 {
        font-size: 2em;
        margin-top: 40px;
        text-align: center;
    }

    p {
        margin-bottom: 20px;
        line-height: 1.8;
    }

    a {
        color: #48dbfb;
        text-decoration: none;
        position: relative;
    }

    a::after {
        content: '';
        position: absolute;
        width: 100%;
        height: 2px;
        bottom: -5px;
        left: 0;
        background: #ffeb3b;
        transform: scaleX(0);
        transition: transform 0.3s ease;
    }

    a:hover::after {
        transform: scaleX(1);
    }

    /* 按钮样式 */
    .button {
        background: #48dbfb;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        cursor: pointer;
        transition: all 0.3s ease;
        font-size: 1em;
    }

    .button:hover {
        background: #1e90ff;
    }

    /* 容器 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 网格系统 */
    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 20px;
    }

    .grid-item {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(10px);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .grid-item:hover {
        transform: scale(1.05);
        background: rgba(255, 255, 255, 0.2);
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 40px;
    }

    table, th, td {
        border: 1px solid #ffffff;
    }

    th, td {
        padding: 10px;
        text-align: left;
    }

    th {
        background: #2a5298;
    }

    /* 图片样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 40px;
    }

    .image-gallery img {
        width: 100%;
        max-width: 320px;
        border-radius: 10px;
        transition: transform 0.3s ease;
    }

    .image-gallery img:hover {
        transform: scale(1.05);
    }

    /* 代码块样式 */
    pre {
        background: rgba(0, 0, 0, 0.8);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        margin-bottom: 20px;
    }

    /* 动画效果 */
    .line {
        width: 0;
        height: 2px;
        background: #ffeb3b;
        animation: extendLine 2s forwards;
    }

    @keyframes extendLine {
        to {
            width: 100%;
        }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        h2 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 15px;
        }
    }

    @media (max-width: 1024px) {
        .grid {
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        }
    }

    @media (max-width: 768px) {
        h2 {
            font-size: 1.6em;
        }
    }

    @media (max-width: 480px) {
        .button {
            padding: 8px 16px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        h2 {
            font-size: 1.4em;
        }
    }

    /* 动态线条与粒子动画 */
    .animated-background {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle, rgba(255,87,34,0.5), transparent);
        animation: aurora-move 15s linear infinite;
        z-index: -1;
    }

    @keyframes aurora-move {
        from {
            transform: translateX(0);
        }
        to {
            transform: translateX(-100%);
        }
    }

    /* 提示信息样式 */
    .note {
        background: rgba(0, 0, 0, 0.5);
        padding: 10px 20px;
        border-left: 5px solid #ffeb3b;
        margin-bottom: 20px;
    }